Product Description
Improve airflow, throttle response, and turbo efficiency with the WEHRLI CUSTOM FAB WCF100712 STAGE 3 HIGH FLOW INTAKE BUNDLE KIT designed specifically for the 2001-2004 LB7 Duramax. This premium intake upgrade from Wehrli Custom Fabrication replaces the restrictive factory intake components with a high-flow system engineered to maximize air delivery to the turbocharger.
The Stage 3 intake bundle combines a large diameter 4-inch intake system, high-performance air filter, upgraded intake hardware, and high-quality fabricated components to dramatically improve airflow while maintaining reliability. By reducing intake restriction, the WCF100712 kit allows the turbocharger to spool faster while supporting higher horsepower levels for towing, daily driving, or performance builds.
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Key Features
- Stage 3 high-flow intake bundle for LB7 Duramax
- Large diameter 4" intake tubing for improved airflow
- High-performance washable air filter
- Improves turbo spool and throttle response
- Supports increased horsepower and performance builds
- Precision engineered components from Wehrli Custom Fabrication
- Direct bolt-on installation
- Durable aluminum intake piping construction
Fitment
- 2001 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2002 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2003 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2004 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2001-2004 GMC Sierra 2500HD / 3500HD 6.6L Duramax LB7
Performance Note: Increasing airflow to the turbocharger allows the Duramax engine to produce improved power and efficiency when paired with proper tuning and supporting modifications.
Frequently Asked Questions
What does the Stage 3 intake bundle include?
The kit includes a large diameter intake tube, high flow performance air filter, and supporting installation components designed to improve airflow to the turbocharger.
Will this intake improve turbo spool?
Yes. The increased airflow and reduced intake restriction can improve turbo response and help the turbocharger spool more efficiently.
Is tuning required after installing this intake kit?
No tuning is required for installation, but performance tuning can help maximize the power gains available from improved airflow.
Is the air filter reusable?
Yes. The high-performance filter included in this kit is washable and reusable for long-term maintenance.
Will this kit work with aftermarket turbo systems?
Yes. The high-flow intake system is compatible with most stock and upgraded turbocharger setups designed for the LB7 Duramax platform.
Specifications for WEHRLI CUSTOM FAB WCF100712
| Specification | Details |
|---|---|
| Brand | Wehrli Custom Fabrication |
| Part Number | WCF100712 |
| UPC | Not Listed by Manufacturer |
| GTIN | Not Listed |
| Shipping Weight | Approximately 18 lbs |
| Package Dimensions | 28 x 16 x 14 inches |
| Shipping Method | UPS / FedEx Ground |
| Prop 65 Warning | This product may contain chemicals known to the State of California to cause cancer or reproductive harm. For more information visit https://www.P65Warnings.ca.gov |
